Object Oriented Programming Using Python — DU B.Sc. (Prog) Physical Science courses pertaining to Computer Science Previous Year Question Papers

(b) Draw a flowchart to compute the factors of a given number. Write python statements for the following (5) i. Initializing x to 7 and incrementing the value by 1 (6) (c) ili. Store the integer division of x and y in z ii. Assign a string to the variable str and print the subset of characters of the string. (d) Write a function to check whether a given number is prime or not. Give the output of the following code snippet: (5) sumt=x print (sum) ii. str='Hello'. print (str[::-1]) (e) Given the following dictionary Write python statements for the following: d=('Gita': 45, 'Siya': 78, 'Sarika': 90} (8) (3) ili. Display the list of names and marks in the following format Name marks_obtained returns the reverse of Ist in a new list. Write a function in python reverse (Ist) that takes list Ist as a parameter and (5) (b) Write a program to generate the following pattern where the height of the pattern, 'h', (5) is input from the user. (0) Give the output of the following code: i. print (56**2//1883) print (10!=9 and 38>=38) ili.. print ('Welcome'*4) iv. print ('1' in 'Hello') 03 (a) Write a function that takes a string as input and returns the number of characters, vowels (5) and words as a tuple. (b) Let's assume a string- str1= 'house no123 ,Rajnagar Extension, Uttar Pradesh', What will be the output on executing each of the following statements: i. print (strl. find('no"')) ii. print (stri.split(' ")) iv. print (strl.is alpha ()) Write a program using function to swap two numbers with and without using a (5) v. print (str1. replace ('e', 'u")) (c) temporary variable. (9) Q4 (a) Given the output of the following code snippets i. c=[23,45,67,89,90, 123] ii. subject=" computer' subject=list (subject) for i in range (0, 1en (subject) -1) : subject [il=subject [i+1] subject [len (subject) -1]=ch print('" • join (subject)) iii. Fruits=| 'lemon', 'orange', 'grapes', 'apple', 'pineapple', 'ki wi'l Vegetables=['spinach', 'caultiflower', 'lady finger') print (Fruits and Vegetables) print (Fruits or Vegetables) print (Fruits- add ('Pomegranate"), (b) in it. Create a dictionary 'd' to store the vowels and their frequency present in the Write a program that takes a sentence as input and computes the frequency of vowels (6) another file, 'file2.txt'. Use appropriate exception handling during the file Write a function that reads the file 'file1. txt" and copies odd-numbered lines to (5) (b) Consider the following function computeSquareRoot (): import math (б) a=int (input ('Enter the value')) result=math.sqrt(a) except ValueError: print ('value error') except IypeError: print ('typeerror') else: print ('unexpected error') print (result) print ('End task') a='13' and a='-56'. Determine the output for the above function call when the value entered for a= "h', (c) Find the error in the following code snippet: F1=open ('Al.txt') (4) E1. write ("welcome") Rewrite the above code with the use of exception handling.